🟡7.47: REVIEW WITH QUIZIZZ: TOTAL MECHANICAL ENERGY: 38W S2 22

TRUE OR FALSE: Total Mechanical Energy is measured in Joules.

• true
• false

TRUE OR FALSE: Total Mechanical Energy in a system can be all PE, KE or the sum of both.

• true
• false

TRUE OR FALSE: The law of conservation states the energy cannot be created or destroyed, it can however transform from one form of energy to another and back again.

• true
• false

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-2

TRUE OR FALSE: Gravitational energy is the energy of location.

• true
• false

Tags

NGSS.MS-PS3-2

TRUE OR FALSE: If a vase falls off the top shelf of a tall cabinet, its gravitational potential energy will be transformed to chemical energy.

• true
• false

TRUE OR FALSE: The total mechanical energy is calculated by dividing the sum of the kinetic energy by the potential energy in a system.

• true
• false

Tags

NGSS.HS-PS3-2

TRUE OR FALSE: In a roller coaster ride, assuming there are no non-conservative forces (like friction or air resistance), the total mechanical energy of the roller coaster cart will remain the same at every height.

• true
• false

Tags

NGSS.HS-PS3-1

What is the total energy of the system or the TME?

• 10 J
• 30 J
• 20 J
• 50 J

Tags

NGSS.HS-PS3-1

What will be the KE at the bottom of the ramp?

• 20 J
• 30 J
• 50 J
• 10 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What will be the PE at the top of the ramp?

• 20 J
• 0 J
• 30 J
• 50 J

Tags

NGSS.HS-PS3-1